[gegl] bilateral-filter-fast: add reference hash

[Øyvind Kolås <ok src gnome org>]

commit 833cb458d3ecfd113e4d1e7ed000fd7f7f112375
Author: Øyvind Kolås <pippin gimp org>
Date:   Sat Oct 14 03:26:33 2017 +0200

    bilateral-filter-fast: add reference hash

 operations/workshop/bilateral-filter-fast.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/operations/workshop/bilateral-filter-fast.c b/operations/workshop/bilateral-filter-fast.c
index c57c292..7f0121f 100644
--- a/operations/workshop/bilateral-filter-fast.c
+++ b/operations/workshop/bilateral-filter-fast.c
@@ -502,6 +502,7 @@ gegl_op_class_init (GeglOpClass *klass)
   "title"      , _("Bilateral Box Filter"),
   "categories" , "enhance:noise-reduction",
   "description", _("A fast approximation of bilateral filter, using a box-filter instead of a gaussian 
blur."),
+  "reference-hash", "b8de1836c4208596363743656c4e3d63",
   "reference", "A Fast Approximation of the Bilateral Filter using a Signal Processing Approach Sylvain 
Paris and Frédo Durand European Conference on Computer Vision (ECCV'06)",
         NULL);
 }